Includes GasAlertMax XT II detector (% LEL (filtered), O2, H2S, CO) and standard package contents, plus wall charging adaptor, IR Connectivity Kit with Fleet Manager II software, sampling probe, hydrophobic (5) and particulate (5) pump filters, 10 ft. / 3 m sampling hose, calibration gas (2.5% CH4,18% O2, 25 ppm H2S, 100 ppm CO), 0.5 LPM regulator and carrying case with foam insert.